Free tool · DNS check

DNS Checker

See a domain’s A, AAAA, MX, NS and TXT records in one report, with a few checks that matter for sending email.

How it works

What gets checked

We query the five record types through a public DNS-over-HTTPS resolver and list what is published with TTLs. We flag a missing mail server or name server, and more than one SPF record, which receivers treat as an error.

Limits

What it cannot tell you

  • It reads public DNS through a DNS-over-HTTPS resolver. It does not send mail and cannot say whether a message will be delivered or pass authentication.
  • It reads the records at the name you enter. Subdomain records, CNAME chains and DNS views that differ by location are not followed.
  • Seeing a record does not prove it is correct for your sending setup. Use the SPF, DKIM and DMARC checkers for those.
  • Anonymous use is limited to 30 checks per hour.
FAQ

Common questions